Untitled

C CODE-

#include <stdio.h>
#include <stdlib.h>
struct point{ //define the structure to store points information
int x;
int y;
};
int* quadrants(struct point* points, int n); //function header
//main or driver method
int main()
{
int n;
struct point* points; //points
int* quads;
printf("Enter the value of n : "); //read the value of 'n'
scanf("%d",&n);
points = (struct point*)malloc(n*sizeof(struct point)); //dynamically allocate memory to points array
//run a loop for 'n' times to store points information
for(int i=0;i<n;i++){
printf("Enter co-ordinates of point %d : \n",i+1); //read points
scanf("%d %d",&(points[i].x),&(points[i].y));
}
//call the function quadrants() with correct parameters and store the result in array 'quads'
quads = quadrants(points, n);
//display the result
printf("\nNumber of points in : \n");
for(int i=0;i<4;i++){
printf("Quadrant %d : %d\n",i+1,quads[i]); //print Quadrant content
}
free(points); //free memory
free(quads);
return 0;
}
//define the method quadrants() that takes in points and n as parameters
//returns quadrant array of size 4, with each index storing the number of points in that quadrant
int* quadrants(struct point* points, int n) {
int *q = (int* )malloc(n*sizeof(int)); //create an array to store quadrants content
//run a loop to iterate over points array
for(int i=0;i<n;i++){
//if both x and y are +ve, then 1st quadrant
if(points[i].x >= 0 && points[i].y >= 0 ){
q[0] = q[0] + 1;
}
//if x is -ve and y is +ve, then 2nd quadrant
else if(points[i].x <= 0 && points[i].y >= 0 ){
q[1] = q[1] + 1;
}
//if both x and y are -ve, then 3rd quadrant
if(points[i].x <= 0 && points[i].y <= 0 ){
q[2] = q[2] + 1;
}
//if both x is +ve and y is -ve, then 4th quadrant
if(points[i].x >= 0 && points[i].y <= 0 ){
q[3] = q[3] + 1;
}
}
return q;
}

IMAGE OF CODE-